Stepping automatic feeding device of heat-treatment furnace

Abstract

The invention discloses a stepping automatic feeding device of a heat-treatment furnace and belongs to the field of heat-treatment furnaces. The heat-treatment furnace comprises a furnace support and a furnace body and is characterized in that a pair of workpiece bearing frames is fixed to the bottoms at each of two sides of a hearth of the furnace body; a group of support pillar receiving chambers are arranged at the bottom at each of two sides of a hearth of the furnace body; and a material receiving plate is fixed to the furnace body. The stepping automatic feeding device comprises 1, a frame, 2, a tractor elevator mechanism installed above the frame, 3, a tractor guide rail support connected to the tractor elevator mechanism, 4, a tractor arranged on the tractor guide rail support, wherein a group of support pillars are fixed to two sides of the tractor and workpiece consignment mechanisms are fixed to upper parts of the support pillars, and 5, a tractor reciprocating motion mechanism, wherein a pair of sliding seal plate guide rails are respectively fixed to an outer wall of the tractor reciprocating motion mechanism; a sliding seal plate is arranged between the pair of sliding seal plate guide rails; the sliding seal plate is provided with support pillar sliding holes; and a group of support pillar support plates are fixed to the tractor. The stepping automatic feeding device of the heat-treatment furnace realizes workpiece stepping displacement, satisfies workpiece stepping motion requirements, has a simple structure and avoids escape of heat in the hearth.

Description

technical field [0001] The invention belongs to the technical field of heat treatment furnaces, and in particular relates to a step-type automatic feeding device for heat treatment furnaces. Background technique [0002] As known in the industry, in the manufacturing process of mechanical parts (such as chain rails) and metal materials (such as bars, pipes and forgings) made of metal, heat treatment is usually required to ensure quality such as improving hardness. Usually, the workpiece for heat treatment is fed into the furnace from the feed port at one end of the length direction of the heat treatment furnace, and the workpiece is moved towards the other end of the length direction of the heat treatment furnace by the driving mechanism within a period of time set according to the process. The discharge port at one end moves until it is output from the discharge port to complete the heat treatment. [0003] The "Push Rod Type Continuous Vacuum Tempering Annealing Multi-pur...

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Problems solved by technology

[0003] The "push rod type continuous vacuum tempering and annealing multi-purpose furnace" introduced by the Chinese invention patent publication number CN101333591A is to use the push rod to push the workpiece from the feed port of the heat treatment furnace Move towards the direction of the discharge port until it is expelled from the furnace. Since the patent application does not provide any schematic diagram, the specific structure cannot be known; the "high-frequency annealing machine positioning feeding mechanism" recommended by CN201284351Y uses a synchronous belt transmission mechanism to drive the workpiece , because the synchronous belt moving mechanism is located in the furnace, it is not only easy to damage, but also troublesome to maintain; the "quenching equipment" disclosed by the publication number CN101144112A utilizes the principle of a forklift to shovel out the workpiece after heat treatment from the furnace and transfer it to the quenching pool. The accompanying drawings of the description of the patent scheme illustrate the rollers arranged in the furnace to drive the workpiece to move; the "seamless steel pipe quenching furnace transmission device" provided by CN201614391U utilizes the transmission roller to drive the steel pipe

[0004] is not limited to the patents or patent application schemes listed above. The common point is that the feeding mechanism for driving the workpiece to move is set in the furnace. The advantages lie in: It can make the workpiece move slowly and smoothly from the feed port under the premise of meeting the required heat treatment time according to the set speed, but the short service life and troublesome maintenance are common shortcomings. High temperature and easy to damage

The "vacuum annealing furnace feeding mechanism" disclosed by utility model patent authorization announcement number CN20181706U may be able to avoid the above-mentioned shortcomings, but the overall structure is complicated and it is lacking, and because the patent scheme does not provide such as driving the power mechanism of the traction trolley, the feeding platform, etc. The enlightenment of technical elements such as the structural connection relationship between the trolley and the traction car, and the butt joint between the guide rail and the guide rail in the furnace body, so there are obstacles to the interpretation of the industry

[0005]The step-by-step automatic feeding device can eliminate the above-mentioned shortcomings, because it can be matched with the furnace body to avoid damage (burning) caused by the high temperature in the furnace, but Corresponding passages must be provided on the furnace body so that the relevant parts of the step-by-step automatic feeding device can penetrate into the furnace chamber of the furnace body to transfer the workpieces in the heat treatment process from the feed port to the discharge port in a step-by-step manner. However, opening a channel on the furnace body will cause the heat in the furnace to escape to the outside and cause a waste of energy.

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